Being able to run Linux binaries natively on Windows is nothing new.
CoLinux did it somewhat poorly but garnered a bit of popularity.
http://atratus.org did it too. FreeBSD (and maybe the other BSDs?) have first party Linux emulation which isn't entirely trivial, as you still have to write effectively the same stuff. (ELF binaries to be interpretted on a COFF/PE binary platform for Windows; the FBSD guys wrote an entire layer that maintained the SysV COFF a.out standard while concurrently allowing you run the more modern ELF binary standard circa version 4.3.)
Windows also has had first party access to all of those utils via the `gow'[1] package. In ConEmu it looks pretty nifty too. (Not that you really need it since the whole MSbuild chain is now 100% open, but yeah not having to fight against Cygwin and mingw32 for hours as one had to 10 years ago is quite nice.)
CoLinux did it somewhat poorly but garnered a bit of popularity. http://atratus.org did it too. FreeBSD (and maybe the other BSDs?) have first party Linux emulation which isn't entirely trivial, as you still have to write effectively the same stuff. (ELF binaries to be interpretted on a COFF/PE binary platform for Windows; the FBSD guys wrote an entire layer that maintained the SysV COFF a.out standard while concurrently allowing you run the more modern ELF binary standard circa version 4.3.)
Windows also has had first party access to all of those utils via the `gow'[1] package. In ConEmu it looks pretty nifty too. (Not that you really need it since the whole MSbuild chain is now 100% open, but yeah not having to fight against Cygwin and mingw32 for hours as one had to 10 years ago is quite nice.)
[1] https://chocolatey.org/packages/Gow